In some cases where the throat cavity becomes very narrow, the breathing pathway is obstructed periodically. Then, the lungs cannot infuse blood with oxygen as efficiently. The brain will be alerted of such a condition and rouses the body more frequently, disabling one to go into deep sleep until the throat cavity muscles becomes tense and open large enough for ventilation once more. This process will stimulate the body and put it to sleep again. The steps above are repeated all night long. Therefore, snoring is a factor of sleep deprivation.